Atransformation that turns every point in a figure about a fixed point at the same angle and in the same direction is a (what)

The cost of camp, c, is going to increase by 8% next summer. write an expression that represents rhe expected cost for next summers camp.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?